40210712 has 64 divisors (see below), whose sum is σ = 83967840. Its totient is φ = 17971200.

The previous prime is 40210679. The next prime is 40210717. The reversal of 40210712 is 21701204.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40210717) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 306887 + ... + 307017.

Almost surely, 2^40210712 is an apocalyptic number.

It is an amenable number.

40210712 is an abundant number, since it is smaller than the sum of its proper divisors (43757128).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40210712 is a wasteful number, since it uses less digits than its factorization.

40210712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252 (or 248 counting only the distinct ones).

The product of its (nonzero) digits is 112, while the sum is 17.

The square root of 40210712 is about 6341.1916861107. The cubic root of 40210712 is about 342.5946586889.

Adding to 40210712 its reverse (21701204), we get a palindrome (61911916).

It can be divided in two parts, 402107 and 12, that multiplied together give a palindrome (4825284).

The spelling of 40210712 in words is "forty million, two hundred ten thousand, seven hundred twelve".